title: Impact of emergency medical services stroke routing protocols on Primary Stroke Center certification in California.
abstract: OBJECTIVE
  Organized stroke systems of care include Primary Stroke Center (PSC) certification and preferential emergency medical services (EMS) routing of suspected patients with stroke to designated PSCs. Stroke EMS routing is not nationally governed; in California, routing is determined by county. EMS routing policies might provide an incentive for PSC accreditation. We evaluated the relationship between independent adoption of EMS routing protocols and PSC designation acquisition in California.
  
  
  METHODS
  Dates of PSC certification were obtained through The Joint Commissions Website and confirmatory calls to stroke coordinators. Starting date of county EMS PSC routing policies was obtained from county EMS agencies. We provide descriptive analysis of number of hospitals achieving PSC designation relative to implementation of EMS routing policies for all counties with PSCs.
  
  
  RESULTS
  By June 2012, there were 131 California PSCs in 27 counties, and 22 of 58 counties had implemented EMS routing policies. The greatest number of PSCs was in Los Angeles (30) followed by San Diego (11), Orange (9), and Santa Clara (9) counties. Achievement of PSC designation occurred more frequently immediately before and after EMS routing: 51 PSCs (39%) within 1 year; 85 PSCs (65%) within 2 years. The yearly rate of eligible hospital conversion to PSC designation accelerated concurrent with EMS diversion policy adoption from 3.8% before to 16.2% during and decelerated afterward to 7.6%.
  
  
  CONCLUSIONS
  Implementation of EMS routing policies may be an important factor driving PSC certification. National adoption of stroke routing policies may lead to more PSCs, positively impacting patient care.
authors.affiliation: From the Keck School of Medicine, University of Southern California (S. Schuberg, W.J.M., S.Y.C., N.S.); Department of Neurology, Rush University, Chicago, IL (S. Song); UCLA Stroke Center (J.L.S.); and Roxanna Todd Hodges Comprehensive Stroke Clinic, University of Southern California (W.J.M., N.S.).
authors.forename: Sam
authors.initials: S
authors.lastname: Schuberg
authors.forename: Sarah
authors.initials: S
authors.lastname: Song
authors.forename: Jeffrey L
authors.initials: JL
authors.lastname: Saver
authors.forename: William J
authors.initials: WJ
authors.lastname: Mack
authors.forename: Steven Y
authors.initials: SY
authors.lastname: Cen
authors.forename: Nerses
authors.initials: N
authors.lastname: Sanossian
mesh_terms: D002140:California; D002568:Certification / Q000592:standards*; D004632:Emergency Medical Services / Q000458:organization & administration*; D005260:Female; D006761:Hospitals / Q000592:standards*; D006801:Humans; D008297:Male; D020521:Stroke / Q000628:therapy*
keywords: certification; health policy; prehospital emergency care; stroke, acute